394 



INDEX 



Biology, modern, V, 57; effect 

 of Darwinian theory, VIII, 

 327 



Birch, hardiness of, VIII, 

 165 



Bird cherry, hardy, III, 145 



Birds, orchid pollenized by 

 small, I, 129; heredity of, II, 

 99-100; migratory, II, 100 



Birkeland, converts atmospheric 

 nitrogen into nitric acid, 

 VI, 45 



Bittersweet, poisonous, I, 247 



Black bean, production of, V, 

 147; color of second gen- 

 eration, V, 148; variations in 

 offspring of, V, 148; vines of, 

 148; vines of second genera- 

 tion of, V, 148-149 



Blackberry, needs no thorns, I, 

 149; new white, I, 325-352; 

 first truly white, I, 331; 

 Primus, II, 29; thornless, II, 

 87; white, II, 122; hybrid, II, 

 205; Lawton, II, 207; normal, 

 crossed with white black- 

 berries, III, 25; thornless, 

 IV, 209-232; evergreen, IV, 

 327-329; color factors for 

 blackness in, V, 57; color fac- 

 tors for whiteness in, V, 57; 

 experiments with hybrids of, 

 VIII, 344-346 



Blackcap berry, IV, 315-317 



Black color, predominant in 

 heredity, I, 347 



Black dahlia, VI, 846; attempts 

 to hybridize with dahlia, VI, 

 347-349 



Black guinea pig, predominance 

 of black color in, VI, 299 



Black mustard, prized for culi- 

 nary purposes, V, 207 



Black salsify, V, 127 



Black walnut, produces cabinet 

 wood, II, 68; where grown, 

 VIII, 25 



Blood plum Satsuma, III, 3S3- 

 340 



Bloomwia aurea, grown exten- 

 sively, V, 278 



Bluebell, VII, 130-131 



Blueberry, IV, 337-341 



Bluebird, II, 99 



Blue poppy, experiments in 

 production of, VI, 280-292; 

 principles of color transfor- 

 mation of, VI, 299; domi- 

 nant color factors in VI, 301- 

 305 



Bodinghaus, M., produces new 

 hybrid gladiolus, VII, 11 



Body plasm, segregation of 

 germ plasm and, V, 64; sep- 

 arated from germ plasm, 

 VII, 155-160; everywhere as- 

 sociated, VII, 366 



Bolivian peastone peach, valu- 

 able for experiment, III, 204 



Boll weevil, menaces cotton, VI, 

 60-61; Guatemala ant resists, 

 VI, 61; larva of, VI, 63 



Bonfires, II, 278 



Bon Silene rose, used in pro- 

 ducing Burbank rose, VI, 

 230; used in producing new 

 roses, VI, 238 



Bordeaux mixture, disinfecting 

 seeds, II, 54-55; used to 

 destroy insects, III, 109-110 



Borneo, plants from, VII, 181 



Boston ivy, VII, 249 



Boxes for seedlings, II, 283-286 



Branches of trees, IV, 101-103 



Brazil, navel orange from, III, 

 293-294; plants from, III, 

 310; VII, 225 



Breeding, for particular traits, 

 II, 131-132, for varied quali- 

 ties, V, 335-337 



Brevoortia, V, 277 



Bridal rose, double - flowering 

 plant, V, 31-33 



Broccoli, consists of thickened 

 flower parts, V, 117 



Brodieea, V, 272-277 



Brome grasses, VI, 179-184 



Broom corn, VI, 79-81 



